Information transfer using a single particle path-spin hybrid entangled state

Details Information transfer using a single particle path-spin hybrid entangled state Information transfer using a single particle path-spin hybrid entangled state

2010-02-19

arxiv.org/abs/1002.3694v1

Physics Letters A 374, 1121(2010)

Physics

Quantum Physics

Scientific paper

The path-spin entangled state of a single spin-1/2 particle is considered which is generated by using a beam-spitter and a spin-flipper. Using this hybrid entanglement at the level of a single particle as a resource, we formulate a protocol for transferring of the state of an unknown qubit to a distant location. Our scheme is implemented by a sequence of unitary operations along with suitable spin-measurements, as well as by using classical communication between the two spatially separated parties. This protocol, thus, demonstrates the possibility of using intraparticle entanglement as a physical resource for performing information theoretic tasks.

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